Proverbs 13:3

He that watcheth his mouth, guardeth his soul, He that openeth wide his lips, it shall be his ruin.

Proverbs 21:23

He that keepeth his mouth and his tongue, keepeth, out of distresses, his soul.

Proverbs 12:13

By the transgression of the lips, is the wicked man, ensnared, but the righteous, cometh out of distress.

Proverbs 18:7

The mouth of a dullard, is his ruin, and, his lips, are a snare to his soul.

Proverbs 18:21

Death and life, are in the power of the tongue, and, its friends, shall eat its fruits.

Psalm 39:1

I said, to myself, I will take heed to my ways, That I sin not with my tongue, - I will put on my mouth a muzzle, So long as the lawless is before me.

Proverbs 10:19

In the multitude of words, there wanteth not transgression, but, he that restraineth his lips, sheweth prudence.

Proverbs 20:19

A revealer of secrets, is one who goeth about talebearing, therefore, with him who openeth his lips, shalt thou not have fellowship.

Matthew 12:36-37

But I say unto you, That, every useless expression that men shall utter, they shall render, concerning it, an account, in a day of judgment;

James 1:26

If any thinketh he is observant of religion, not curbing his own tongue, but deceiving his own heart, this one's, religious observance is, vain:

James 3:2-12

For, oft, are we stumbling, one and all: If anyone, in word, doth not stumble, the same, is a mature man, able to curb even the whole body.

Treasury of Scripture Knowledge

Summary

He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.

Bible References

General references

Proverbs 10:19
In the multitude of words, there wanteth not transgression, but, he that restraineth his lips, sheweth prudence.
Proverbs 12:13
By the transgression of the lips, is the wicked man, ensnared, but the righteous, cometh out of distress.
Proverbs 21:23
He that keepeth his mouth and his tongue, keepeth, out of distresses, his soul.
Psalm 39:1
I said, to myself, I will take heed to my ways, That I sin not with my tongue, - I will put on my mouth a muzzle, So long as the lawless is before me.
Matthew 12:36
But I say unto you, That, every useless expression that men shall utter, they shall render, concerning it, an account, in a day of judgment;
James 1:26
If any thinketh he is observant of religion, not curbing his own tongue, but deceiving his own heart, this one's, religious observance is, vain:
James 3:2
For, oft, are we stumbling, one and all: If anyone, in word, doth not stumble, the same, is a mature man, able to curb even the whole body.